| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for compensating the offset in an asymmetric reproduction signal DRSO, which allows the offset to be compensated even in the case that the amplitude of the shortest run length component is smaller than the asymmetry of the reproduction signal DRSO, with respect to a method and a device for compensating the asymmetry in the reproduction signal DRSO from an optical recording medium. SOLUTION: In the method for compensating the offset in the asymmetric reproduction signal, an offset compensation signal OFS is subtracted from the asymmetric reproduction signal, and the offset compensation signal OFS is generated by an offset compensator 11. The method comprises a step of detecting a binary data signal NRZ from the asymmetric reproduction signal DRSO and a step of using the binary data signal NRZ to obtain the offset compensation signal OFS. COPYRIGHT: (C)2005,JPO&NCIPI
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